Turn-table derailer.



110.884,94?. i PATBNTED AP11.14,1908.

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- TURN TABLE DBRAILER.

APPLIoATIoN FILED 11111.11. 1907.

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810.884,947; PATENTED 18128.14, 1908.

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TURN TABLE DERAILEB.

APPLICATION FILED MAR. 11. 1907. y

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ROBERT OGLE, OF PUEBLO,l COLORADO.

i TURN-TABLE DERAILER.

Specification of Letters Patent.

Patented April 14, 1908.

Application filed March 11, 1907. Serial No.Vv 361,839. ,A

To all whom it may concern:

Be it known that I, ROBERT OGLE, a citizen of the United States, residing at Pueblo, in the county of Pueblo and State of Colorado, have invented certain new and useful Improvements in Turn-Table Derailers; and I do declare the following to be a full, clear, and exact description of the invention, such 'as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of re erence marked thereon, which form a part of this specification.

My invention relates to derailing apparatus for use between railway round-houses and the turntable to which the round house tracks lead.

It very often happens that the throttle valves of locomotives leak steam whereby the same passes to the cylinder in sufficient quantity to cause the locomotive to run into the turntable it, assuming that the table is not in line with comotive is traveling. Accidents of this kind arevery serious, since it is a matter of considerable delay and no little expense to remove the engine from the pit. Moreover the locomotive is usually greatly injured.

The object of my present invention, is t0 make it impossible for the locomotive to reach the pit under the circumstances above named, since itwill be derailed or run off the track between the roundhouse and the turntable. This will stop the locomotive, and the latter may be returned to the track at very little expense, as compared with allowing it to run into the pit.

My improved apparatus is automatic in its action and whenever the turntable is not in line with the track, the switch tongue is' automatically thrown into position to derail the locomotiveJ while when the turntable is the same in detail reference being made tol the accompanying drawing in which is illusvtrated an embodiment thereof.

In this drawing, Figure 1 is a top plan view of my improved apparatus, showing a number of tracks leading to the turntable` the track upon which the lopit. Fig. 2 is a section taken through the apparatus, the turntable and derailing devices being partly broken away, the parts being shown on a larger scale. Fig. 3 is a top plan view of the turntable showing the buffer plate of the derailing apparatus in section.` Fig. 4 is a fragmentary plan view showing a part of the apparatus, the arts being shown on a still larger scale. Fig. 4A is a similar viewI showing the portion of the derailing mechanism which 1s omitted in Fig. 4` for lack of s ace on the sheet. If Fig. 4A were placed at t e right of Fig. 4 with the tworod members in almement, the apparatus would be complete. Fig. 5 is a section takenl on the line 5-5 Fig. 2 viewed in the direction of the arrow and with the parts on a larger scale. Fig. 6 is a fragmentary view showing the signaling devices connected with the derailing apparatus. Fig` 7 is a section taken on the line 7 7 Fig. 3.

The same reference characters indicate the same parts in all the views.

Let the numeral 5 designate a turntable pit, and 6 the turntable centered therein and adapted to be brought into alinement with sections of track 7 leading to the pit from various directions as from a roundhouse. Connected with one of the rails 7A of'each of these tracks is a switch tongue 8 pivoted at 9, whereby it is permitted to assume either the full line or dotted line position in Fig. 4. When in the full line position it engages an abutment lraised along the track and forming a stationary support to maintain the tongue securely in position when arranged to allow the locomotive to take the straight track. This switch tongue is connected with one extremity of a rod 12. The opposite extremity of this rod is ivotally connected with an arm 14 of a bell) crank lever 15 fulcrumed at 16. The tongue 8 is also connected by means of a rod 17 with a lever 18 fulcrumed at 19. This arm 18 is provided at its upper extremity with a red glass 20, which when the switch tongue is in position to derail the locomotive, is brought into position in front of a white light lantern 21. This red glass is on the side of the lantern toward the roundhouse so that the danger signal may be'seen from the house.

The arm 22 of the bell crank lever 15 is latter a firm support causing the wheel 34 to cated between the rails of the track 7. The extremity of the rod 23 remote from the bell crank lever is connected with the upturned fiange 28 of a plate 29 slidably mounted and retained in position by a guide 30. This plate 29 is provided at its extremity remote from the rod with a depending buffer plate 31 which as shown in the drawing is formed integral with the plate 29. The rod 23 passes through a guide bracket 32 intermediate the slidable plate 29 and the guide rollers 24 and 25. The rod passes through an upturned flange 32A of this bracket and is slidable freely therein. Between this flange and the flange 28 of the slidable plate 29, is located a coil spring 33, which normally holds the slidable plate 29 together with the curved depending plate 31 in a position corresponding with the dotted line position of the bell crank lever and the switch tongue 3 in Fig. 4. In other words the spring 33 normally holds the apparatus in position to derail a locomotive moving upon the track. When, however, the turntable is in line with the track, a wheel 34 carried by the turntable and horizontally journaled, engages the buffer plate 31, 'and acts thereon to shift the rod 23 suHiciently to throw the bell crank lever and the switch tongue 8 to the full line position in the drawing. When the switch tongue is in the full line position in the drawing, the lever 18 carrying the red signal 20 is thrown to the position shown in Fig. 6, or out of alinement with the lantern 21. Hence the lantern shows a white light and indicates a clear track. When, however, the switch tongue is shifted to the dotted line position in Fig. 4, the signal lever 13 will be thrown to a position to bring the red signal 2O in alinement with the lantern showing a red light and indicating danger.

The actuating wheel 34 of the turntable, may be mounted thereon in any suitable manner. As shown in the drawing this wheel 34 is journaled in a yoke 35 having a stem 36 passing through ties or cross beams 37 and slidable therein. A spring 33 is interposed between the yoke and the foremost beam 37 and has a tendency to hold the yoke and the wheel in position to be engaged b the buffer plate 31. When it is desired that the wheel 34 shall engage the buffer plate and actuate the derailing apparatus, a stop block 39 is thrown into engagement with the rear extremity of the yoke stem 36 as shown in Figs. 2 and 3. This yoke is connected with a rod 40, the latter being actuated by a lever arm 41 exposed at one side of the turntable. This block 39 forms an abutment against which the yoke stem 36 bears and gives the act on the buffer plate 31 without yielding. When, however, the block is thrown to the dotted line position in Fig. 7, the wheel and its carriage are free to move rearwardly l house or connecting the turntable with the roundhouse, while the three lower tracks may be considered ingoing or outgoing tracks whereby locomotives may reach the turntable on their way to the roundhouse., or leave the turntable to go into the yard after leaving the roundhouse.

lt will be considered that whenever the turntable is in line with any track 7, the switch tongue 8 is in line to cause the locomotive to keep the straight track to the turntable. When, however, the turntable is out of line with any track 7, the coil spring 33 acting on the slidable plate 39, shifts the rod 23 to open the switch or throw the tongue to the dotted line )osition in Fig. 4, or in position to derail the locomotive before it runs into the pit.

Having thus described my invention, what I claim is:

1. The combination with a turntable, and a track leading thereto, of a switch tongue, a danger signal connected therewith, mechanism connected with the switch tongue for normally maintaining the latter in thc derailing position and the signal in the danger position, the said mechanism having a spring actuated plate part projecting into the path of the turntable, whereby when the latter is in line with the track, it acts on the mechanism to maintain the switch tongue in the nonderailing position, and the signal light in the condition indicating safety o1' a clear track, substantially as described.

2. The combination with a turntable and a track, of an automatic derailing mechanism comprising the derailer proper, and means for normally holding the derailing device in the derailing position, the said mechanism having a reciprocating plate projecting into the path of the turntable and adapted to be acted on by the latter' to maintain the derailer in the non-derailing position, substantially as described.

3. The combination with a turntable and a track leading thereto, of a derailing switch tongue connected with the track, a lever connected with the switch tongue, a spring actuated rod connected with the lever and normally maintaining the switch tongue in the open or derailing position, and a plate connected with the rod and actuated thereby,

the said plate projecting into the ath of the turntable and ada ted to be acte on thereby, to shift the ro and lever into osition to maintain the switch tongue in t e non-derailing or clear track position7 substantially as described.

4. The combination with a turntable and a track, of a switch tongue, mechanism connected with the switch tongue for normally holding the latter in the derailing osition,

said mechanism having a buffer p ate proj ecting into the path of the turntable, Whereby the latter acts on the mechanism to maintain the switch tongue in the nonderailin-g position When the turntable is .in line with the track, substantially as described.

In testimony whereof I aflix my signature in presence of tWo Witnesses.

ROBERT OGLE.

Witnesses:-

A. J. OBRIEN, DENA NELSON. 

